什么叫基本进路？什么叫迂回进路？

主机功率大于或等于220千瓦的推船，应配备（）。

关于肥厚型心肌病的论述，正确的是（）。

A.室间隔肥厚可产生异常Q波

B.室间隔严重肥厚可引起左心室流出道狭窄

C.异常Q波多出现在Ⅰ、aVL、V₄～V₆导联

D.异常Q波深而不宽

E.不会出现二尖瓣型P波

根据句意，用括号中所给单词的正确形式填空。

1. — How many _______(player) are there on a football team? 

    — Eleven.

2. Sandy __________ (not like) listening to music.

3. Mr Wu is our teacher. He teaches ________( we ) English.

4. I'm new here, but all my classmates are __________ ( friend ) and helpful to me.

5. How much water _____ ( be ) there in the bottle?

6. Our school football team wins again. Frank plays very _______( good ) in the match.

7. — Who is the _______(one ) to come to school?

    — Oh, it's Lily.

8. Is __________( child ) Day in June or July?

9. He likes swimming. He is a good ________( swim )

10. — What do you do for Halloween?

     — We play a game _______( call )" trick or treat".

英美法认为，计算损害的基本原则是使由于债务人违约而蒙受损害的一方，在经济上能处于该合同得到履行时同等的地位。

办毕公文的销毁是指什么？